/* * Unix SMB/CIFS implementation. * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-1997, * Copyright (C) Luke Kenneth Casson Leighton 1996-1997, * Copyright (C) Paul Ashton 1997. * Copyright (C) Jeremy Allison 1998-2001. * Copyright (C) Andrew Bartlett 2001. * Copyright (C) Guenther Deschner 2008. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ /* This is the implementation of the netlogon pipe. */ #include "includes.h" #include "../libcli/auth/libcli_auth.h" extern userdom_struct current_user_info; #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV /************************************************************************* init_net_r_req_chal: *************************************************************************/ static void init_net_r_req_chal(struct netr_Credential *r, struct netr_Credential *srv_chal) { DEBUG(6,("init_net_r_req_chal: %d\n", __LINE__)); memcpy(r->data, srv_chal->data, sizeof(r->data)); } /******************************************************************* Inits a netr_NETLOGON_INFO_1 structure. ********************************************************************/ static void init_netlogon_info1(struct netr_NETLOGON_INFO_1 *r, uint32_t flags, uint32_t pdc_connection_status) { r->flags = flags; r->pdc_connection_status = pdc_connection_status; } /******************************************************************* Inits a netr_NETLOGON_INFO_2 structure. ********************************************************************/ static void init_netlogon_info2(struct netr_NETLOGON_INFO_2 *r, uint32_t flags, uint32_t pdc_connection_status, const char *trusted_dc_name, uint32_t tc_connection_status) { r->flags = flags; r->pdc_connection_status = pdc_connection_status; r->trusted_dc_name = trusted_dc_name; r->tc_connection_status = tc_connection_status; } /******************************************************************* Inits a netr_NETLOGON_INFO_3 structure. ********************************************************************/ static void init_netlogon_info3(struct netr_NETLOGON_INFO_3 *r, uint32_t flags, uint32_t logon_attempts) { r->flags = flags; r->logon_attempts = logon_attempts; } /************************************************************************* _netr_LogonControl *************************************************************************/ WERROR _netr_LogonControl(pipes_struct *p, struct netr_LogonControl *r) { struct netr_LogonControl2Ex l; switch (r->in.level) { case 1: break; case 2: return WERR_NOT_SUPPORTED; default: return WERR_UNKNOWN_LEVEL; } l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = NULL; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /**************************************************************************** Send a message to smbd to do a sam synchronisation **************************************************************************/ static void send_sync_message(void) { DEBUG(3, ("sending sam synchronisation message\n")); message_send_all(smbd_messaging_context(), MSG_SMB_SAM_SYNC, NULL, 0, NULL); } /************************************************************************* _netr_LogonControl2 *************************************************************************/ WERROR _netr_LogonControl2(pipes_struct *p, struct netr_LogonControl2 *r) { struct netr_LogonControl2Ex l; l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = r->in.data; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /**************************************************************** _netr_LogonControl2Ex ****************************************************************/ WERROR _netr_LogonControl2Ex(pipes_struct *p, struct netr_LogonControl2Ex *r) { uint32 flags = 0x0; uint32 pdc_connection_status = 0x0; uint32 logon_attempts = 0x0; uint32 tc_status; fstring dc_name2; const char *dc_name = NULL; struct sockaddr_storage dc_ss; const char *domain = NULL; struct netr_NETLOGON_INFO_1 *info1; struct netr_NETLOGON_INFO_2 *info2; struct netr_NETLOGON_INFO_3 *info3; const char *fn; switch (p->hdr_req.opnum) { case NDR_NETR_LOGONCONTROL: fn = "_netr_LogonControl"; break; case NDR_NETR_LOGONCONTROL2: fn = "_netr_LogonControl2"; break; case NDR_NETR_LOGONCONTROL2EX: fn = "_netr_LogonControl2Ex"; break; default: return WERR_INVALID_PARAM; } tc_status = W_ERROR_V(WERR_NO_SUCH_DOMAIN); switch (r->in.function_code) { case NETLOGON_CONTROL_TC_QUERY: domain = r->in.data->domain; if ( !is_trusted_domain( domain ) ) break; if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) { tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS); break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); if (!dc_name) { return WERR_NOMEM; } tc_status = W_ERROR_V(WERR_OK); break; case NETLOGON_CONTROL_REDISCOVER: domain = r->in.data->domain; if ( !is_trusted_domain( domain ) ) break; if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) { tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS); break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); if (!dc_name) { return WERR_NOMEM; } tc_status = W_ERROR_V(WERR_OK); break; default: /* no idea what this should be */ DEBUG(0,("%s: unimplemented function level [%d]\n", fn, r->in.function_code)); return WERR_UNKNOWN_LEVEL; } /* prepare the response */ switch (r->in.level) { case 1: info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1); W_ERROR_HAVE_NO_MEMORY(info1); init_netlogon_info1(info1, flags, pdc_connection_status); r->out.query->info1 = info1; break; case 2: info2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_2); W_ERROR_HAVE_NO_MEMORY(info2); init_netlogon_info2(info2, flags, pdc_connection_status, dc_name, tc_status); r->out.query->info2 = info2; break; case 3: info3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_3); W_ERROR_HAVE_NO_MEMORY(info3); init_netlogon_info3(info3, flags, logon_attempts); r->out.query->info3 = info3; break; default: return WERR_UNKNOWN_LEVEL; } if (lp_server_role() == ROLE_DOMAIN_BDC) { send_sync_message(); } return WERR_OK; } /************************************************************************* _netr_NetrEnumerateTrustedDomains *************************************************************************/ WERROR _netr_NetrEnumerateTrustedDomains(pipes_struct *p, struct netr_NetrEnumerateTrustedDomains *r) { struct netr_Blob trusted_domains_blob; DATA_BLOB blob; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); /* set up the Trusted Domain List response */ blob = data_blob_talloc_zero(p->mem_ctx, 2); trusted_domains_blob.data = blob.data; trusted_domains_blob.length = blob.length; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); *r->out.trusted_domains_blob = trusted_domains_blob; return WERR_OK; } /****************************************************************** gets a machine password entry. checks access rights of the host. ******************************************************************/ static NTSTATUS get_md4pw(char *md4pw, const char *mach_acct, uint16_t sec_chan_type, uint32_t *rid) { struct samu *sampass = NULL; const uint8 *pass; bool ret; uint32 acct_ctrl; #if 0 char addr[INET6_ADDRSTRLEN]; /* * Currently this code is redundent as we already have a filter * by hostname list. What this code really needs to do is to * get a hosts allowed/hosts denied list from the SAM database * on a per user basis, and make the access decision there. * I will leave this code here for now as a reminder to implement * this at a later date. JRA. */ if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(), client_name(get_client_fd()), client_addr(get_client_fd(),addr,sizeof(addr)))) { DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct)); return False; } #endif /* 0 */ if ( !(sampass = samu_new( NULL )) ) { return NT_STATUS_NO_MEMORY; } /* JRA. This is ok as it is only used for generating the challenge. */ become_root(); ret = pdb_getsampwnam(sampass, mach_acct); unbecome_root(); if (!ret) { DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_ACCESS_DENIED; } acct_ctrl = pdb_get_acct_ctrl(sampass); if (acct_ctrl & ACB_DISABLED) { DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_ACCOUNT_DISABLED; } if (!(acct_ctrl & ACB_SVRTRUST) && !(acct_ctrl & ACB_WSTRUST) && !(acct_ctrl & ACB_DOMTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_NO_TRUST_SAM_ACCOUNT; } switch (sec_chan_type) { case SEC_CHAN_BDC: if (!(acct_ctrl & ACB_SVRTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested " "but not a server trust account\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_NO_TRUST_SAM_ACCOUNT; } break; case SEC_CHAN_WKSTA: if (!(acct_ctrl & ACB_WSTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested " "but not a workstation trust account\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_NO_TRUST_SAM_ACCOUNT; } break; case SEC_CHAN_DOMAIN: if (!(acct_ctrl & ACB_DOMTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested " "but not a interdomain trust account\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_NO_TRUST_SAM_ACCOUNT; } break; default: break; } if ((pass = pdb_get_nt_passwd(sampass)) == NULL) { DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct)); TALLOC_FREE(sampass); return NT_STATUS_LOGON_FAILURE; } memcpy(md4pw, pass, 16); dump_data(5, (uint8 *)md4pw, 16); if (rid) { *rid = pdb_get_user_rid(sampass); } TALLOC_FREE(sampass); return NT_STATUS_OK; } /************************************************************************* _netr_ServerReqChallenge *************************************************************************/ NTSTATUS _netr_ServerReqChallenge(pipes_struct *p, struct netr_ServerReqChallenge *r) { if (!p->dc) { p->dc = TALLOC_ZERO_P(p, struct dcinfo); if (!p->dc) { return NT_STATUS_NO_MEMORY; } } else { DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n")); ZERO_STRUCTP(p->dc); } fstrcpy(p->dc->remote_machine, r->in.computer_name); /* Save the client challenge to the server. */ memcpy(p->dc->clnt_chal.data, r->in.credentials->data, sizeof(r->in.credentials->data)); /* Create a server challenge for the client */ /* Set this to a random value. */ generate_random_buffer(p->dc->srv_chal.data, 8); /* set up the LSA REQUEST CHALLENGE response */ init_net_r_req_chal(r->out.return_credentials, &p->dc->srv_chal); p->dc->challenge_sent = True; return NT_STATUS_OK; } /************************************************************************* _netr_ServerAuthenticate Create the initial credentials. *************************************************************************/ NTSTATUS _netr_ServerAuthenticate(pipes_struct *p, struct netr_ServerAuthenticate *r) { NTSTATUS status; struct netr_Credential srv_chal_out; if (!p->dc || !p->dc->challenge_sent) { return NT_STATUS_ACCESS_DENIED; } status = get_md4pw((char *)p->dc->mach_pw, r->in.account_name, r->in.secure_channel_type, NULL); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("_netr_ServerAuthenticate: get_md4pw failed. Failed to " "get password for machine account %s " "from client %s: %s\n", r->in.account_name, r->in.computer_name, nt_errstr(status) )); /* always return NT_STATUS_ACCESS_DENIED */ return NT_STATUS_ACCESS_DENIED; } /* From the client / server challenges and md4 password, generate sess key */ creds_server_init(0, /* No neg flags. */ p->dc, &p->dc->clnt_chal, /* Stored client chal. */ &p->dc->srv_chal, /* Stored server chal. */ p->dc->mach_pw, &srv_chal_out); /* Check client credentials are valid. */ if (!netlogon_creds_server_check(p->dc, r->in.credentials)) { DEBUG(0,("_netr_ServerAuthenticate: netlogon_creds_server_check failed. Rejecting auth " "request from client %s machine account %s\n", r->in.computer_name, r->in.account_name)); return NT_STATUS_ACCESS_DENIED; } fstrcpy(p->dc->mach_acct, r->in.account_name); fstrcpy(p->dc->remote_machine, r->in.computer_name); p->dc->authenticated = True; /* set up the LSA AUTH response */ /* Return the server credentials. */ memcpy(r->out.return_credentials->data, &srv_chal_out.data, sizeof(r->out.return_credentials->data)); return NT_STATUS_OK; } /************************************************************************* _netr_ServerAuthenticate3 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate3(pipes_struct *p, struct netr_ServerAuthenticate3 *r) { NTSTATUS status; uint32_t srv_flgs; /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags, * so use a copy to avoid destroying the client values. */ uint32_t in_neg_flags = *r->in.negotiate_flags; struct netr_Credential srv_chal_out; const char *fn; /* According to Microsoft (see bugid #6099) * Windows 7 looks at the negotiate_flags * returned in this structure *even if the * call fails with access denied* ! So in order * to allow Win7 to connect to a Samba NT style * PDC we set the flags before we know if it's * an error or not. */ /* 0x000001ff */ srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT | NETLOGON_NEG_PERSISTENT_SAMREPL | NETLOGON_NEG_ARCFOUR | NETLOGON_NEG_PROMOTION_COUNT | NETLOGON_NEG_CHANGELOG_BDC | NETLOGON_NEG_FULL_SYNC_REPL | NETLOGON_NEG_MULTIPLE_SIDS | NETLOGON_NEG_REDO | NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL; /* Ensure we support strong (128-bit) keys. */ if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) { srv_flgs |= NETLOGON_NEG_STRONG_KEYS; } if (lp_server_schannel() != false) { srv_flgs |= NETLOGON_NEG_SCHANNEL; } switch (p->hdr_req.opnum) { case NDR_NETR_SERVERAUTHENTICATE2: fn = "_netr_ServerAuthenticate2"; break; case NDR_NETR_SERVERAUTHENTICATE3: fn = "_netr_ServerAuthenticate3"; break; default: return NT_STATUS_INTERNAL_ERROR; } /* We use this as the key to store the creds: */ /* r->in.computer_name */ if (!p->dc || !p->dc->challenge_sent) { DEBUG(0,("%s: no challenge sent to client %s\n", fn, r->in.computer_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } if ( (lp_server_schannel() == true) && ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) { /* schannel must be used, but client did not offer it. */ DEBUG(0,("%s: schannel required but client failed " "to offer it. Client was %s\n", fn, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } status = get_md4pw((char *)p->dc->mach_pw, r->in.account_name, r->in.secure_channel_type, r->out.rid); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("%s: failed to get machine password for " "account %s: %s\n", fn, r->in.account_name, nt_errstr(status) )); /* always return NT_STATUS_ACCESS_DENIED */ status = NT_STATUS_ACCESS_DENIED; goto out; } /* From the client / server challenges and md4 password, generate sess key */ creds_server_init(in_neg_flags, p->dc, &p->dc->clnt_chal, /* Stored client chal. */ &p->dc->srv_chal, /* Stored server chal. */ p->dc->mach_pw, &srv_chal_out); /* Check client credentials are valid. */ if (!netlogon_creds_server_check(p->dc, r->in.credentials)) { DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth " "request from client %s machine account %s\n", fn, r->in.computer_name, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } /* set up the LSA AUTH 2 response */ memcpy(r->out.return_credentials->data, &srv_chal_out.data, sizeof(r->out.return_credentials->data)); fstrcpy(p->dc->mach_acct, r->in.account_name); fstrcpy(p->dc->remote_machine, r->in.computer_name); fstrcpy(p->dc->domain, lp_workgroup() ); p->dc->authenticated = True; /* Store off the state so we can continue after client disconnect. */ become_root(); secrets_store_schannel_session_info(p->mem_ctx, r->in.computer_name, p->dc); unbecome_root(); status = NT_STATUS_OK; out: *r->out.negotiate_flags = srv_flgs; return status; } /************************************************************************* _netr_ServerAuthenticate2 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate2(pipes_struct *p, struct netr_ServerAuthenticate2 *r) { struct netr_ServerAuthenticate3 a; uint32_t rid; a.in.server_name = r->in.server_name; a.in.account_name = r->in.account_name; a.in.secure_channel_type = r->in.secure_channel_type; a.in.computer_name = r->in.computer_name; a.in.credentials = r->in.credentials; a.in.negotiate_flags = r->in.negotiate_flags; a.out.return_credentials = r->out.return_credentials; a.out.rid = &rid; a.out.negotiate_flags = r->out.negotiate_flags; return _netr_ServerAuthenticate3(p, &a); } /************************************************************************* _netr_ServerPasswordSet *************************************************************************/ NTSTATUS _netr_ServerPasswordSet(pipes_struct *p, struct netr_ServerPasswordSet *r) { NTSTATUS status = NT_STATUS_OK; struct samu *sampass=NULL; bool ret = False; unsigned char pwd[16]; int i; uint32 acct_ctrl; struct netr_Authenticator cred_out; const uchar *old_pw; DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__)); if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { /* 'server schannel = yes' should enforce use of schannel, the client did offer it in auth2, but obviously did not use it. */ DEBUG(0,("_netr_ServerPasswordSet: client %s not using schannel for netlogon\n", r->in.computer_name)); return NT_STATUS_ACCESS_DENIED; } if (!p->dc) { /* Restore the saved state of the netlogon creds. */ become_root(); ret = secrets_restore_schannel_session_info(p, r->in.computer_name, &p->dc); unbecome_root(); if (!ret) { return NT_STATUS_INVALID_HANDLE; } } if (!p->dc || !p->dc->authenticated) { return NT_STATUS_INVALID_HANDLE; } DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n", r->in.computer_name, p->dc->mach_acct)); /* Step the creds chain forward. */ if (!netlogon_creds_server_step(p->dc, r->in.credential, &cred_out)) { DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth " "request from client %s machine account %s\n", r->in.computer_name, p->dc->mach_acct )); return NT_STATUS_INVALID_PARAMETER; } /* We must store the creds state after an update. */ sampass = samu_new( NULL ); if (!sampass) { return NT_STATUS_NO_MEMORY; } become_root(); secrets_store_schannel_session_info(p, r->in.computer_name, p->dc); ret = pdb_getsampwnam(sampass, p->dc->mach_acct); unbecome_root(); if (!ret) { TALLOC_FREE(sampass); return NT_STATUS_ACCESS_DENIED; } /* Ensure the account exists and is a machine account. */ acct_ctrl = pdb_get_acct_ctrl(sampass); if (!(acct_ctrl & ACB_WSTRUST || acct_ctrl & ACB_SVRTRUST || acct_ctrl & ACB_DOMTRUST)) { TALLOC_FREE(sampass); return NT_STATUS_NO_SUCH_USER; } if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) { TALLOC_FREE(sampass); return NT_STATUS_ACCOUNT_DISABLED; } /* Woah - what does this to to the credential chain ? JRA */ cred_hash3(pwd, r->in.new_password->hash, p->dc->sess_key, 0); DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n")); for(i = 0; i < sizeof(pwd); i++) DEBUG(100,("%02X ", pwd[i])); DEBUG(100,("\n")); old_pw = pdb_get_nt_passwd(sampass); if (old_pw && memcmp(pwd, old_pw, 16) == 0) { /* Avoid backend modificiations and other fun if the client changed the password to the *same thing* */ ret = True; } else { /* LM password should be NULL for machines */ if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) { TALLOC_FREE(sampass); return NT_STATUS_NO_MEMORY; } if (!pdb_set_nt_passwd(sampass, pwd, PDB_CHANGED)) { TALLOC_FREE(sampass); return NT_STATUS_NO_MEMORY; } if (!pdb_set_pass_last_set_time(sampass, time(NULL), PDB_CHANGED)) { TALLOC_FREE(sampass); /* Not quite sure what this one qualifies as, but this will do */ return NT_STATUS_UNSUCCESSFUL; } become_root(); status = pdb_update_sam_account(sampass); unbecome_root(); } /* set up the LSA Server Password Set response */ memcpy(r->out.return_authenticator, &cred_out, sizeof(*(r->out.return_authenticator))); TALLOC_FREE(sampass); return status; } /************************************************************************* _netr_LogonSamLogoff *************************************************************************/ NTSTATUS _netr_LogonSamLogoff(pipes_struct *p, struct netr_LogonSamLogoff *r) { if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { /* 'server schannel = yes' should enforce use of schannel, the client did offer it in auth2, but obviously did not use it. */ DEBUG(0,("_netr_LogonSamLogoff: client %s not using schannel for netlogon\n", get_remote_machine_name() )); return NT_STATUS_ACCESS_DENIED; } /* Using the remote machine name for the creds store: */ /* r->in.computer_name */ if (!p->dc) { /* Restore the saved state of the netlogon creds. */ bool ret; become_root(); ret = secrets_restore_schannel_session_info( p, r->in.computer_name, &p->dc); unbecome_root(); if (!ret) { return NT_STATUS_INVALID_HANDLE; } } if (!p->dc || !p->dc->authenticated) { return NT_STATUS_INVALID_HANDLE; } /* checks and updates credentials. creates reply credentials */ if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) { DEBUG(2,("_netr_LogonSamLogoff: netlogon_creds_server_step failed. Rejecting auth " "request from client %s machine account %s\n", r->in.computer_name, p->dc->mach_acct )); return NT_STATUS_INVALID_PARAMETER; } /* We must store the creds state after an update. */ become_root(); secrets_store_schannel_session_info(p, r->in.computer_name, p->dc); unbecome_root(); return NT_STATUS_OK; } /************************************************************************* _netr_LogonSamLogon *************************************************************************/ NTSTATUS _netr_LogonSamLogon(pipes_struct *p, struct netr_LogonSamLogon *r) { NTSTATUS status = NT_STATUS_OK; union netr_LogonLevel *logon = r->in.logon; const char *nt_username, *nt_domain, *nt_workstation; auth_usersupplied_info *user_info = NULL; auth_serversupplied_info *server_info = NULL; struct auth_context *auth_context = NULL; uint8_t pipe_session_key[16]; bool process_creds = true; const char *fn; switch (p->hdr_req.opnum) { case NDR_NETR_LOGONSAMLOGON: process_creds = true; fn = "_netr_LogonSamLogon"; break; case NDR_NETR_LOGONSAMLOGONEX: fn = "_netr_LogonSamLogonEx"; default: fn = ""; process_creds = false; } if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { /* 'server schannel = yes' should enforce use of schannel, the client did offer it in auth2, but obviously did not use it. */ DEBUG(0,("%s: client %s not using schannel for netlogon\n", fn, get_remote_machine_name() )); return NT_STATUS_ACCESS_DENIED; } *r->out.authoritative = true; /* authoritative response */ switch (r->in.validation_level) { case 2: r->out.validation->sam2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo2); if (!r->out.validation->sam2) { return NT_STATUS_NO_MEMORY; } break; case 3: r->out.validation->sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3); if (!r->out.validation->sam3) { return NT_STATUS_NO_MEMORY; } break; default: DEBUG(0,("%s: bad validation_level value %d.\n", fn, (int)r->in.validation_level)); return NT_STATUS_INVALID_INFO_CLASS; } if (process_creds) { /* Get the remote machine name for the creds store. */ /* Note this is the remote machine this request is coming from (member server), not neccessarily the workstation name the user is logging onto. */ if (!p->dc) { /* Restore the saved state of the netlogon creds. */ bool ret; become_root(); ret = secrets_restore_schannel_session_info( p, r->in.computer_name, &p->dc); unbecome_root(); if (!ret) { return NT_STATUS_INVALID_HANDLE; } } if (!p->dc || !p->dc->authenticated) { return NT_STATUS_INVALID_HANDLE; } /* checks and updates credentials. creates reply credentials */ if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) { DEBUG(2,("%s: creds_server_step failed. Rejecting auth " "request from client %s machine account %s\n", fn, r->in.computer_name, p->dc->mach_acct )); return NT_STATUS_INVALID_PARAMETER; } /* We must store the creds state after an update. */ become_root(); secrets_store_schannel_session_info(p, r->in.computer_name, p->dc); unbecome_root(); } switch (r->in.logon_level) { case NetlogonInteractiveInformation: nt_username = logon->password->identity_info.account_name.string; nt_domain = logon->password->identity_info.domain_name.string; nt_workstation = logon->password->identity_info.workstation.string; DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup())); break; case NetlogonNetworkInformation: nt_username = logon->network->identity_info.account_name.string; nt_domain = logon->network->identity_info.domain_name.string; nt_workstation = logon->network->identity_info.workstation.string; DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup())); break; default: DEBUG(2,("SAM Logon: unsupported switch value\n")); return NT_STATUS_INVALID_INFO_CLASS; } /* end switch */ DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain)); fstrcpy(current_user_info.smb_name, nt_username); sub_set_smb_name(nt_username); DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", r->in.validation_level, nt_username)); status = NT_STATUS_OK; switch (r->in.logon_level) { case NetlogonNetworkInformation: { const char *wksname = nt_workstation; status = make_auth_context_fixed(&auth_context, logon->network->challenge); if (!NT_STATUS_IS_OK(status)) { return status; } /* For a network logon, the workstation name comes in with two * backslashes in the front. Strip them if they are there. */ if (*wksname == '\\') wksname++; if (*wksname == '\\') wksname++; /* Standard challenge/response authenticaion */ if (!make_user_info_netlogon_network(&user_info, nt_username, nt_domain, wksname, logon->network->identity_info.parameter_control, logon->network->lm.data, logon->network->lm.length, logon->network->nt.data, logon->network->nt.length)) { status = NT_STATUS_NO_MEMORY; } break; } case NetlogonInteractiveInformation: /* 'Interactive' authentication, supplies the password in its MD4 form, encrypted with the session key. We will convert this to challenge/response for the auth subsystem to chew on */ { uint8_t chal[8]; if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) { return status; } auth_context->get_ntlm_challenge(auth_context, chal); if (!make_user_info_netlogon_interactive(&user_info, nt_username, nt_domain, nt_workstation, logon->password->identity_info.parameter_control, chal, logon->password->lmpassword.hash, logon->password->ntpassword.hash, p->dc->sess_key)) { status = NT_STATUS_NO_MEMORY; } break; } default: DEBUG(2,("SAM Logon: unsupported switch value\n")); return NT_STATUS_INVALID_INFO_CLASS; } /* end switch */ if ( NT_STATUS_IS_OK(status) ) { status = auth_context->check_ntlm_password(auth_context, user_info, &server_info); } (auth_context->free)(&auth_context); free_user_info(&user_info); DEBUG(5,("%s: check_password returned status %s\n", fn, nt_errstr(status))); /* Check account and password */ if (!NT_STATUS_IS_OK(status)) { /* If we don't know what this domain is, we need to indicate that we are not authoritative. This allows the client to decide if it needs to try a local user. Fix by jpjanosi@us.ibm.com, #2976 */ if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER) && !strequal(nt_domain, get_global_sam_name()) && !is_trusted_domain(nt_domain) ) *r->out.authoritative = false; /* We are not authoritative */ TALLOC_FREE(server_info); return status; } if (server_info->guest) { /* We don't like guest domain logons... */ DEBUG(5,("%s: Attempted domain logon as GUEST " "denied.\n", fn)); TALLOC_FREE(server_info); return NT_STATUS_LOGON_FAILURE; } /* This is the point at which, if the login was successful, that the SAM Local Security Authority should record that the user is logged in to the domain. */ if (process_creds) { /* Get the pipe session key from the creds. */ memcpy(pipe_session_key, p->dc->sess_key, 16); } else { /* Get the pipe session key from the schannel. */ if ((p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) || (p->auth.a_u.schannel_auth == NULL)) { return NT_STATUS_INVALID_HANDLE; } memcpy(pipe_session_key, p->auth.a_u.schannel_auth->sess_key, 16); } switch (r->in.validation_level) { case 2: status = serverinfo_to_SamInfo2(server_info, pipe_session_key, 16, r->out.validation->sam2); break; case 3: status = serverinfo_to_SamInfo3(server_info, pipe_session_key, 16, r->out.validation->sam3); break; } TALLOC_FREE(server_info); return status; } /************************************************************************* _netr_LogonSamLogonEx - no credential chaining. Map into net sam logon. *************************************************************************/ NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p, struct netr_LogonSamLogonEx *r) { struct netr_LogonSamLogon q; /* Only allow this if the pipe is protected. */ if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) { DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n", get_remote_machine_name() )); return NT_STATUS_INVALID_PARAMETER; } q.in.server_name = r->in.server_name; q.in.computer_name = r->in.computer_name; q.in.logon_level = r->in.logon_level; q.in.logon = r->in.logon; q.in.validation_level = r->in.validation_level; /* we do not handle the flags */ /* = r->in.flags; */ q.out.validation = r->out.validation; q.out.authoritative = r->out.authoritative; /* we do not handle the flags */ /* = r->out.flags; */ return _netr_LogonSamLogon(p, &q); } /************************************************************************* _ds_enum_dom_trusts *************************************************************************/ #if 0 /* JERRY -- not correct */ NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u, DS_R_ENUM_DOM_TRUSTS *r_u) { NTSTATUS status = NT_STATUS_OK; /* TODO: According to MSDN, the can only be executed against a DC or domain member running Windows 2000 or later. Need to test against a standalone 2k server and see what it does. A windows 2000 DC includes its own domain in the list. --jerry */ return status; } #endif /* JERRY */ /**************************************************************** ****************************************************************/ WERROR _netr_LogonUasLogon(pipes_struct *p, struct netr_LogonUasLogon *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_LogonUasLogoff(pipes_struct *p, struct netr_LogonUasLogoff *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseDeltas(pipes_struct *p, struct netr_DatabaseDeltas *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseSync(pipes_struct *p, struct netr_DatabaseSync *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_AccountDeltas(pipes_struct *p, struct netr_AccountDeltas *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_AccountSync(pipes_struct *p, struct netr_AccountSync *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_GetDcName(pipes_struct *p, struct netr_GetDcName *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_GetAnyDCName(pipes_struct *p, struct netr_GetAnyDCName *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseSync2(pipes_struct *p, struct netr_DatabaseSync2 *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseRedo(pipes_struct *p, struct netr_DatabaseRedo *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCName(pipes_struct *p, struct netr_DsRGetDCName *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonGetCapabilities(pipes_struct *p, struct netr_LogonGetCapabilities *r) { return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONSETSERVICEBITS(pipes_struct *p, struct netr_NETRLOGONSETSERVICEBITS *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_LogonGetTrustRid(pipes_struct *p, struct netr_LogonGetTrustRid *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(pipes_struct *p, struct netr_NETRLOGONCOMPUTESERVERDIGEST *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(pipes_struct *p, struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCNameEx(pipes_struct *p, struct netr_DsRGetDCNameEx *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetSiteName(pipes_struct *p, struct netr_DsRGetSiteName *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonGetDomainInfo(pipes_struct *p, struct netr_LogonGetDomainInfo *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_ServerPasswordSet2(pipes_struct *p, struct netr_ServerPasswordSet2 *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_ServerPasswordGet(pipes_struct *p, struct netr_ServerPasswordGet *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONSENDTOSAM(pipes_struct *p, struct netr_NETRLOGONSENDTOSAM *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRAddressToSitenamesW(pipes_struct *p, struct netr_DsRAddressToSitenamesW *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCNameEx2(pipes_struct *p, struct netr_DsRGetDCNameEx2 *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(pipes_struct *p, struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NetrEnumerateTrustedDomainsEx(pipes_struct *p, struct netr_NetrEnumerateTrustedDomainsEx *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRAddressToSitenamesExW(pipes_struct *p, struct netr_DsRAddressToSitenamesExW *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrGetDcSiteCoverageW(pipes_struct *p, struct netr_DsrGetDcSiteCoverageW *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrEnumerateDomainTrusts(pipes_struct *p, struct netr_DsrEnumerateDomainTrusts *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrDeregisterDNSHostRecords(pipes_struct *p, struct netr_DsrDeregisterDNSHostRecords *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_ServerTrustPasswordsGet(pipes_struct *p, struct netr_ServerTrustPasswordsGet *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetForestTrustInformation(pipes_struct *p, struct netr_DsRGetForestTrustInformation *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_GetForestTrustInformation(pipes_struct *p, struct netr_GetForestTrustInformation *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p, struct netr_LogonSamLogonWithFlags *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_ServerGetTrustInfo(pipes_struct *p, struct netr_ServerGetTrustInfo *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; }